1 /* vim: set expandtab sw=4 ts=4 sts=4: */
3 * @fileoverview functions used in GIS data editor
9 var gisEditorLoaded = false;
12 * Closes the GIS data editor and perform necessary clean up work.
14 function closeGISEditor() {
15 $("#popup_background").fadeOut("fast");
16 $("#gis_editor").fadeOut("fast", function () {
22 * Prepares the HTML received via AJAX.
24 function prepareJSVersion() {
25 // Change the text on the submit button
26 $("#gis_editor").find("input[name='gis_data[save]']")
27 .val(PMA_messages.strCopy)
28 .insertAfter($('#gis_data_textarea'))
29 .before('<br/><br/>');
31 // Add close and cancel links
32 $('#gis_data_editor').prepend('<a class="close_gis_editor" href="#">' + PMA_messages.strClose + '</a>');
33 $('<a class="cancel_gis_editor" href="#"> ' + PMA_messages.strCancel + '</a>')
34 .insertAfter($("input[name='gis_data[save]']"));
36 // Remove the unnecessary text
37 $('div#gis_data_output p').remove();
39 // Remove 'add' buttons and add links
40 $('#gis_editor').find('input.add').each(function (e) {
41 var $button = $(this);
42 $button.addClass('addJs').removeClass('add');
43 var classes = $button.attr('class');
45 '<a class="' + classes +
46 '" name="' + $button.attr('name') +
47 '" href="#">+ ' + $button.val() + '</a>'
53 * Returns the HTML for a data point.
55 * @param pointNumber point number
56 * @param prefix prefix of the name
57 * @returns the HTML for a data point
59 function addDataPoint(pointNumber, prefix) {
61 PMA_sprintf(PMA_messages.strPointN, (pointNumber + 1)) + ': ' +
62 '<label for="x">' + PMA_messages.strX + '</label>' +
63 '<input type="text" name="' + prefix + '[' + pointNumber + '][x]" value=""/>' +
64 '<label for="y">' + PMA_messages.strY + '</label>' +
65 '<input type="text" name="' + prefix + '[' + pointNumber + '][y]" value=""/>';
69 * Initialize the visualization in the GIS data editor.
71 function initGISEditorVisualization() {
72 // Loads either SVG or OSM visualization based on the choice
73 selectVisualization();
74 // Adds necessary styles to the div that coontains the openStreetMap
76 // Loads the SVG element and make a reference to it
78 // Adds controllers for zooming and panning
79 addZoomPanControllers();
84 * Loads JavaScript files and the GIS editor.
86 * @param value current value of the geometry field
87 * @param field field name
88 * @param type geometry type
89 * @param input_name name of the input field
92 function loadJSAndGISEditor(value, field, type, input_name, token) {
93 var head = document.getElementsByTagName('head')[0];
96 // Loads a set of small JS file needed for the GIS editor
97 var smallScripts = [ 'js/jquery/jquery.svg.js',
98 'js/jquery/jquery.mousewheel.js',
99 'js/jquery/jquery.event.drag-2.2.js',
100 'js/tbl_gis_visualization.js' ];
102 for (var i = 0; i < smallScripts.length; i++) {
103 script = document.createElement('script');
104 script.type = 'text/javascript';
105 script.src = smallScripts[i];
106 head.appendChild(script);
109 // OpenLayers.js is BIG and takes time. So asynchronous loading would not work.
110 // Load the JS and do a callback to load the content for the GIS Editor.
111 script = document.createElement('script');
112 script.type = 'text/javascript';
114 script.onreadystatechange = function () {
115 if (this.readyState == 'complete') {
116 loadGISEditor(value, field, type, input_name, token);
119 script.onload = function () {
120 loadGISEditor(value, field, type, input_name, token);
122 script.onerror = function() {
123 loadGISEditor(value, field, type, input_name, token);
126 script.src = 'js/openlayers/OpenLayers.js';
127 head.appendChild(script);
129 gisEditorLoaded = true;
133 * Loads the GIS editor via AJAX
135 * @param value current value of the geometry field
136 * @param field field name
137 * @param type geometry type
138 * @param input_name name of the input field
141 function loadGISEditor(value, field, type, input_name, token) {
143 var $gis_editor = $("#gis_editor");
144 $.post('gis_data_editor.php', {
148 'input_name' : input_name,
149 'get_gis_editor' : true,
153 if (typeof data !== 'undefined' && data.success === true) {
154 $gis_editor.html(data.gis_editor);
155 initGISEditorVisualization();
158 PMA_ajaxShowMessage(data.error, false);
164 * Opens up the dialog for the GIS data editor.
166 function openGISEditor() {
169 var windowWidth = document.documentElement.clientWidth;
170 var windowHeight = document.documentElement.clientHeight;
171 var popupWidth = windowWidth * 0.9;
172 var popupHeight = windowHeight * 0.9;
173 var popupOffsetTop = windowHeight / 2 - popupHeight / 2;
174 var popupOffsetLeft = windowWidth / 2 - popupWidth / 2;
176 var $gis_editor = $("#gis_editor");
177 var $backgrouond = $("#popup_background");
179 $gis_editor.css({"top": popupOffsetTop, "left": popupOffsetLeft, "width": popupWidth, "height": popupHeight});
180 $backgrouond.css({"opacity" : "0.7"});
183 '<div id="gis_data_editor">' +
184 '<img class="ajaxIcon" id="loadingMonitorIcon" src="' +
185 pmaThemeImage + 'ajax_clock_small.gif" alt=""/>' +
190 $backgrouond.fadeIn("fast");
191 $gis_editor.fadeIn("fast");
195 * Prepare and insert the GIS data in Well Known Text format
196 * to the input field.
198 function insertDataAndClose() {
199 var $form = $('form#gis_data_editor_form');
200 var input_name = $form.find("input[name='input_name']").val();
202 $.post('gis_data_editor.php', $form.serialize() + "&generate=true&ajax_request=true", function (data) {
203 if (typeof data !== 'undefined' && data.success === true) {
204 $("input[name='" + input_name + "']").val(data.result);
206 PMA_ajaxShowMessage(data.error, false);
213 * Unbind all event handlers before tearing down a page
215 AJAX.registerTeardown('gis_data_editor.js', function () {
216 $(document).off('click', "#gis_editor input[name='gis_data[save]']");
217 $(document).off('submit', '#gis_editor');
218 $(document).off('change', "#gis_editor input[type='text']");
219 $(document).off('change', "#gis_editor select.gis_type");
220 $(document).off('click', '#gis_editor a.close_gis_editor, #gis_editor a.cancel_gis_editor');
221 $(document).off('click', '#gis_editor a.addJs.addPoint');
222 $(document).off('click', '#gis_editor a.addLine.addJs');
223 $(document).off('click', '#gis_editor a.addJs.addPolygon');
224 $(document).off('click', '#gis_editor a.addJs.addGeom');
227 AJAX.registerOnload('gis_data_editor.js', function () {
229 // Remove the class that is added due to the URL being too long.
230 $('span.open_gis_editor a').removeClass('formLinkSubmit');
233 * Prepares and insert the GIS data to the input field on clicking 'copy'.
235 $(document).on('click', "#gis_editor input[name='gis_data[save]']", function (event) {
236 event.preventDefault();
237 insertDataAndClose();
241 * Prepares and insert the GIS data to the input field on pressing 'enter'.
243 $(document).on('submit', '#gis_editor', function (event) {
244 event.preventDefault();
245 insertDataAndClose();
249 * Trigger asynchronous calls on data change and update the output.
251 $(document).on('change', "#gis_editor input[type='text']", function () {
252 var $form = $('form#gis_data_editor_form');
253 $.post('gis_data_editor.php', $form.serialize() + "&generate=true&ajax_request=true", function (data) {
254 if (typeof data !== 'undefined' && data.success === true) {
255 $('#gis_data_textarea').val(data.result);
256 $('#placeholder').empty().removeClass('hasSVG').html(data.visualization);
257 $('#openlayersmap').empty();
258 /* TODO: the gis_data_editor should rather return JSON than JS code to eval */
259 eval(data.openLayers);
260 initGISEditorVisualization();
262 PMA_ajaxShowMessage(data.error, false);
268 * Update the form on change of the GIS type.
270 $(document).on('change', "#gis_editor select.gis_type", function (event) {
271 var $gis_editor = $("#gis_editor");
272 var $form = $('form#gis_data_editor_form');
274 $.post('gis_data_editor.php', $form.serialize() + "&get_gis_editor=true&ajax_request=true", function (data) {
275 if (typeof data !== 'undefined' && data.success === true) {
276 $gis_editor.html(data.gis_editor);
277 initGISEditorVisualization();
280 PMA_ajaxShowMessage(data.error, false);
286 * Handles closing of the GIS data editor.
288 $(document).on('click', '#gis_editor a.close_gis_editor, #gis_editor a.cancel_gis_editor', function () {
293 * Handles adding data points
295 $(document).on('click', '#gis_editor a.addJs.addPoint', function () {
297 var name = $a.attr('name');
298 // Eg. name = gis_data[0][MULTIPOINT][add_point] => prefix = gis_data[0][MULTIPOINT]
299 var prefix = name.substr(0, name.length - 11);
300 // Find the number of points
301 var $noOfPointsInput = $("input[name='" + prefix + "[no_of_points]" + "']");
302 var noOfPoints = parseInt($noOfPointsInput.val(), 10);
303 // Add the new data point
304 var html = addDataPoint(noOfPoints, prefix);
306 $noOfPointsInput.val(noOfPoints + 1);
310 * Handles adding linestrings and inner rings
312 $(document).on('click', '#gis_editor a.addLine.addJs', function () {
314 var name = $a.attr('name');
316 // Eg. name = gis_data[0][MULTILINESTRING][add_line] => prefix = gis_data[0][MULTILINESTRING]
317 var prefix = name.substr(0, name.length - 10);
318 var type = prefix.slice(prefix.lastIndexOf('[') + 1, prefix.lastIndexOf(']'));
320 // Find the number of lines
321 var $noOfLinesInput = $("input[name='" + prefix + "[no_of_lines]" + "']");
322 var noOfLines = parseInt($noOfLinesInput.val(), 10);
324 // Add the new linesting of inner ring based on the type
327 if (type == 'MULTILINESTRING') {
328 html += PMA_messages.strLineString + ' ' + (noOfLines + 1) + ':';
331 html += PMA_messages.strInnerRing + ' ' + noOfLines + ':';
334 html += '<input type="hidden" name="' + prefix + '[' + noOfLines + '][no_of_points]" value="' + noOfPoints + '"/>';
335 for (var i = 0; i < noOfPoints; i++) {
336 html += addDataPoint(i, (prefix + '[' + noOfLines + ']'));
338 html += '<a class="addPoint addJs" name="' + prefix + '[' + noOfLines + '][add_point]" href="#">+ ' +
339 PMA_messages.strAddPoint + '</a><br/>';
342 $noOfLinesInput.val(noOfLines + 1);
346 * Handles adding polygons
348 $(document).on('click', '#gis_editor a.addJs.addPolygon', function () {
350 var name = $a.attr('name');
351 // Eg. name = gis_data[0][MULTIPOLYGON][add_polygon] => prefix = gis_data[0][MULTIPOLYGON]
352 var prefix = name.substr(0, name.length - 13);
353 // Find the number of polygons
354 var $noOfPolygonsInput = $("input[name='" + prefix + "[no_of_polygons]" + "']");
355 var noOfPolygons = parseInt($noOfPolygonsInput.val(), 10);
357 // Add the new polygon
358 var html = PMA_messages.strPolygon + ' ' + (noOfPolygons + 1) + ':<br/>';
359 html += '<input type="hidden" name="' + prefix + '[' + noOfPolygons + '][no_of_lines]" value="1"/>' +
360 '<br/>' + PMA_messages.strOuterRing + ':' +
361 '<input type="hidden" name="' + prefix + '[' + noOfPolygons + '][0][no_of_points]" value="4"/>';
362 for (var i = 0; i < 4; i++) {
363 html += addDataPoint(i, (prefix + '[' + noOfPolygons + '][0]'));
365 html += '<a class="addPoint addJs" name="' + prefix + '[' + noOfPolygons + '][0][add_point]" href="#">+ ' +
366 PMA_messages.strAddPoint + '</a><br/>' +
367 '<a class="addLine addJs" name="' + prefix + '[' + noOfPolygons + '][add_line]" href="#">+ ' +
368 PMA_messages.strAddInnerRing + '</a><br/><br/>';
371 $noOfPolygonsInput.val(noOfPolygons + 1);
375 * Handles adding geoms
377 $(document).on('click', '#gis_editor a.addJs.addGeom', function () {
379 var prefix = 'gis_data[GEOMETRYCOLLECTION]';
380 // Find the number of geoms
381 var $noOfGeomsInput = $("input[name='" + prefix + "[geom_count]" + "']");
382 var noOfGeoms = parseInt($noOfGeomsInput.val(), 10);
384 var html1 = PMA_messages.strGeometry + ' ' + (noOfGeoms + 1) + ':<br/>';
385 var $geomType = $("select[name='gis_data[" + (noOfGeoms - 1) + "][gis_type]']").clone();
386 $geomType.attr('name', 'gis_data[' + noOfGeoms + '][gis_type]').val('POINT');
387 var html2 = '<br/>' + PMA_messages.strPoint + ' :' +
388 '<label for="x"> ' + PMA_messages.strX + ' </label>' +
389 '<input type="text" name="gis_data[' + noOfGeoms + '][POINT][x]" value=""/>' +
390 '<label for="y"> ' + PMA_messages.strY + ' </label>' +
391 '<input type="text" name="gis_data[' + noOfGeoms + '][POINT][y]" value=""/>' +
395 $geomType.insertBefore($a);
397 $noOfGeomsInput.val(noOfGeoms + 1);